If you’re traveling from Newark, NJ to Singapore… bring a book. You’ll be in the air for almost 19 hours on the longest flight in the world, according to Forbes magazine. Long-haul flights have become more common in the last 6 years, Forbes says, “There were 866 scheduled flights between Hong Kong International Airport and the U.S. or Canada in July 2001 vs. 1,000 scheduled for July 2007.”